
fr:Tracks can be defined using any length unit. Grid also introduces an additional length unit to help us create flexible grid tracks. The new fr unit represents a fraction of the available space in the grid container. The next grid definition would create three equal width tracks that grow and shrink according to the available space.
可以使用任何长度单位定义轨道。Grid还引入了一个额外的长度单元来帮助我们创建灵活的网格轨道。新fr单元表示网格容器中可用空间的一小部分。下一个网格定义将创建三个相等宽度的轨道,根据可用空间增长和缩小。
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